how to farm each milestone

• Participate in x battles

  Since the movement update still didn't go live, hit a single time in every active battle with little to no gear.

• Earn x XP in total

  Just play the game daily and reach other milestones.

• Help x MU members

  Be part of a full MU (25/25) and make sure everyone is active in-game. You also need to be very active in order to help them when they ask.

• Loot x items on battlefield

  Just deal enough damage in a battle round to be able to win loot. Make sure to deal damage in all rounds in a battle to be able to also win the battle loot (=> 3-4 per battle).
  You can also try to deal enough damage in each battle to secure loot, then move to the next one.

• Hit x times in battles

  Play normally; there's no need to adapt your build for this if you are going to lose damage since another milestone requires it. If you still want to optimize it, invest more in Precision, Health, Armor, Dodge and Hunger. An optimal build would require calculations.

• Dismantle x items, Craft x items, Open x cases

  Those are best farmed together: buy cases, sell rare+ gear and dismantle the rest (non premium users will suffer opening cases). With scraps, you can either craft grey gear to re-dismantle and sell scraps or craft rare+ gear to sell. If you choose to craft grey gear, each craft would cost 1 steel, so 100 crafts would cost 100 steel (with the actual market price, that would be 163.5 BTC). If you choose to craft higher gear, make sure to lose less than 1 unit of steel cost. If you don't want to be bothered with calculations and stay near risk-free, just craft grey gear.

• Deal x in battles

  Stop eco farming and go fight.

• Loot x cases in battles

  Invest in some Loot Chance. Try to find a build that maximizes loot chances while still being a viable damage dealer. You can also opt for a goblin build and get a crazy amount of cases, plus you can also farm the "hit x times in battles" milestone, but those builds are generally not viable since they deal little damage and the gains from case selling are lower than just going eco.

• Contribute to resistance x times

  If you are eco, use your remaining HP (after finishing your daily missions) to stack resistance. If you are running a war build, use energy points. Make sure to follow your country's orders to not stack resistance in your enemy's core regions.

• Contribute to constructions x times

  I didn't have time to fully test on dev server, but it should be the same as "Contribute to resistance x times". The only difference is that you cannot use Health so it is only viable with a war build.

• Eat x food items

  If you are using a war build, eat food whenever you can. Choose builds that rely on Hunger a bit. Having 6 Hunger (2 pts in Hunger) makes you eat around 100 times in a week (given you eat whenever possible), which is enough to climb to the level 6 milestone.